JP2021151771A - Method and device for supporting a variety of different pre-cured composite stringers - Google Patents

Abstract

To provide a method and device for supporting a variety of different pre-cured composite stringers after forming and prior to curing.SOLUTION: A post-forming processing device 100 comprises a base unit 110 having a channel 112 for receiving hat portions 191 of different stringers. The device also comprises a support structure 120 which is at least partially extending within the channel. The support structure is configured to conform to different hat portions and to retain a shape of these hat portions. For example, the support structure is made from a flexible material that conforms to any shape variations. In some examples, the support structure is made from a jamming material that is reshaped together with each of the pre-cured composite stringers 190. The post-forming processing device is used for supporting different pre-cured composite stringers while performing various operations on these stringers, such as stringer trimming, inspection, installation of bladders and noodles, and the like.SELECTED DRAWING: Figure 3B

Description

Aircraft utilize various components such as stringers to resist bending, twisting, shearing, and direct loads. Stringers are usually formed from lightweight composites, such as tapes or fabrics with fibers embedded in a resin matrix. For example, composite layups are processed with a forming tool to define the shape. The molded components are then transferred to a curing device for curing. Until curing is complete, the stringer needs sufficient support to retain its shape. This shape is often defined by in-plane and / or out-of-plane bending, in addition to the cross-sectional profile that varies from stringer to stringer. In addition, the molded stringers may be exposed to various steps such as trimming, inspection and installation of additional parts before curing. Support for this uncured stringer is typically provided by either the forming tool or the curing tool, which limits throughput and reduces overall processing speed.

What is needed is a new method and device for supporting a variety of different pre-cured composite stringers after formation and before curing.

Methods and devices for supporting a variety of different pre-cured composite stringers are provided after formation and prior to curing. The post-formation processing device comprises a base having channels for receiving different stringer hat portions. The device also comprises a support structure that extends at least partially within the channel. The support structure is configured to match different hat portions and retain the shape of these hat portions. For example, the support structure is made from a flexible material that matches any shape change. In some examples, the support structure is made from interfering material that is remolded with each of the pre-cured composite stringers. The post-formation processing device is used to support different pre-cured composite stringers while various steps such as stringer trimming, inspection, bladder and noodle installation are performed on these stringers.

In some examples, post-formation processing devices are provided to support pre-cured composite stringers. The composite stringer comprises a hat portion having a different cross section between the pre-cured composite stringers. The post-formation processing device comprises a base, a support structure, and a cover. The base comprises a channel having a channel width and a channel height. The channel width is greater than the width of the hat portion of the pre-cured composite stringer. The channel height is greater than the height of the hat portion of the pre-cured composite stringer. The support structure extends at least partially along the length of the channel within the channel. The support structure is aligned with each of the hat portions and retains the cross-sectional shape of each of the hat portions when the corresponding one of the pre-cured composite stringers is supported by the post-formation processing device. It is composed. The cover is configured to be attached to the base so that the corresponding one of the pre-cured composite stringers is positioned between the cover and the base while being supported by the post-formation processing device.

Also provided is a method of making a composite stringer. The method comprises forming a pre-cured composite stringer with a hat portion on the forming device and transferring the pre-cured composite stringer from the forming device to the post-formation processing device. The post-formation processing device comprises a base comprising the channel and a support structure that extends at least partially along the length of the channel, coincides with the hat portion, and retains the cross-sectional shape of the hat portion. The method further comprises placing the bladder on top of the pre-cured composite stringer while the pre-cured composite stringer is positioned on top of the post-formation processing device. The method places noodles between the bladder and the pre-cured composite stringer and at the interface in the plane of the base support surface while the pre-cured composite stringer is positioned on the post-formation processing device. Including that. The method forms a composite stringer by transferring the pre-cured composite stringer, along with bladder and noodles, from the post-formation processing device to the curing device and curing the pre-cured composite stringer on the curing device. Including what to do.

In some examples, the method involves transferring a pre-cured composite stringer with a hat portion to a post-formation processing device. The post-formation processing device is of a pre-cured composite stringer that extends at least partially along the length of the channel with a base that comprises the channel, matching the hat portion of the pre-cured composite stringer. A support structure for maintaining the cross-sectional shape of the hat portion is provided. The method subsequently involves removing the pre-cured composite stringer from the post-formation processing device and transferring an additional pre-cured composite stringer with an additional hat portion to the post-formation processing device. include. The support structure of the post-formation processing device matches the additional hat portion of the additional pre-cured composite stringer and is different from the cross-sectional shape of the pre-cured composite stringer hat portion of the additional pre-cured composite. Retains the cross-sectional shape of the additional hat portion of the stringer.

It is a process flowchart for manufacturing a composite stringer. FIG. 5 is a process flow chart for manufacturing a composite stringer according to another example of the present disclosure. This is an example of a compound stringer. This is an example of a compound stringer. This is an example of a compound stringer. FIG. 6 is a schematic cross-sectional view of a post-formation processing device comprising a flexible support structure according to some of the examples of the present disclosure. FIG. 2A is a schematic cross-sectional view of a post-formation processing device of FIG. 2A showing a flexible support structure matching the hat portion of a pre-cured composite stringer according to some of the examples of the present disclosure. FIG. 2B is a schematic cross-sectional view of the post-formation processing device of FIGS. 2A-2B showing a cover surrounding a pre-cured composite stringer that is hermetically sealed with respect to the base, according to some examples of the present disclosure. FIG. 3 is a schematic cross-sectional view of a post-formation processing device, both comprising a flexible support structure and flexible inserts positioned within the channel, according to some examples of the present disclosure. FIG. 3 is a schematic cross-sectional view of a post-formation processing device showing a tapered channel, according to some of the examples of the present disclosure. FIG. 3 is a schematic top view of a post-formation processing device showing a bladder seal according to some of the examples of the present disclosure. FIG. 3 is a schematic cross-sectional view of a post-formation processing device comprising a preformed support structure made of an interfering material, according to some examples of the present disclosure. FIG. 3A is a schematic cross-sectional view of a post-formation processing device of FIG. 3A showing a flexible support structure that engages a pre-cured composite stringer according to some of the examples of the present disclosure. FIG. 3B is a schematic cross-sectional view of a post-formation processing device of FIGS. 3A-3B showing a cover surrounding a pre-cured composite stringer that is hermetically sealed with respect to the base, according to some examples of the present disclosure. It is a process flowchart corresponding to the manufacturing method of a composite stringer according to some examples of this disclosure. FIG. 6 is a schematic representation of a laminated layup located on the treated surface of a forming base and extending over a cavity, according to some examples of the present disclosure. FIG. 6 is a schematic representation of a laminated layup molded into a composite stringer pre-cured by a forming device, according to some of the examples of the present disclosure. FIG. 5 is a schematic representation of a pre-cured composite stringer supported by a post-formation processing device, according to some of the examples of the present disclosure. FIG. 5 is a schematic representation of a bladder set within a pre-cured composite stringer while the pre-cured composite stringer is supported by a post-formation processing device, according to some of the examples of the present disclosure. Schematic of noodles placed at the interface between a bladder and a pre-cured composite stringer while the pre-cured composite stringer is supported by a post-formation processing device, according to some of the examples of the present disclosure. Is. FIG. 6 is a schematic representation of a cover sealed to the base of a post-formation processing device, according to some of the examples of the present disclosure. FIG. 6 is a schematic representation of a pre-cured composite stringer transferred to a curing device with bladder and noodles according to some of the examples of the present disclosure. FIG. 6 is a schematic representation of a composite stringer removed from a curing device, according to some of the examples of the present disclosure. It is a schematic of an additional pre-cured composite stringer supported by a post-formation processing device, according to some of the examples of the present disclosure. A and B are top schematics of a post-formation processing device showing in-plane bending according to some examples of the present disclosure. It is a process flow chart corresponding to the method of supporting the pre-cured composite stringer of the post-formation processing device according to some examples of the present disclosure. It is a process flowchart corresponding to the manufacturing and maintenance method of an aircraft. A block diagram of an example of an aircraft according to some of the examples of the present disclosure is shown.

In the discussion below, a number of specific details are specified to provide an exhaustive understanding of the concepts presented. In some examples, the concepts presented are practiced without including some or all of these details. Elsewhere, the well-known process steps are not described in detail so as not to unnecessarily obscure the concepts described. Some concepts are explained with concrete examples, but it will be understood that these examples are not intended to be limiting.

Introduction Composite stringers and other molded composite structures are used in many applications such as aircraft and land vehicles. The manufacture of these composite structures involves a variety of handling and processing of pre-cured and molded components such as trimming, inspection and bladder installation. Prior to curing, these molded components need sufficient support to retain their shape, which can be difficult due to differences in the shape and size of these pre-cured components. .. For example, modern aircraft use hundreds of different composite stringers, which have different sizes, cross-sectional shapes, in-plane bends and / or out-of-plane bends. Providing a dedicated support for each type of these composite stringers is difficult and costly, and adds this dedicated support to the many dedicated tools already used in the manufacture of composite stringers. It will be.

1A-1B are two process flow charts showing different examples of manufacturing composite stringers and corresponding tools used in various steps. 1A-1B are presented to provide a general overview and content of key components, tools, and steps. In both examples, the process begins with the forming device 510 and forms the pre-cured composite stringer 190 by molding the composite layup 502. The curing device 540 then forms the composite stringer 198 by curing the pre-cured composite stringer 190. The pre-cured composite stringer 190 and composite stringer 198 are generally the same in shape but have different materials and mechanical properties. For example, the pre-cured composite stringer 190 resin is not completely cross-linked or is not as cross-linked as the composite stringer 198 resin. Thus, the pre-cured composite stringer 190 can still be deformed and requires support before curing.

Both the forming device 510 and the curing device 540 are specifically molded to accommodate the particular design of the composite stringer 198. Therefore, either one or both of the forming device 510 and the curing device 540 can be used to support the pre-cured composite stringer 190 after the forming step is completed and before the curing step is started, which is shown in FIG. 1A. Corresponds to the example shown in. However, this approach occupies one or both of the forming device 510 and the curing device 540 due to non-core functions of these devices. Moreover, many of these steps and even storage of the pre-cured composite stringer 190 can take significant time. As a result, the throughput of the forming device 510 and the curing device 540 and / or both may be limited by the storage associated with these intermediate steps and the pre-cured composite stringer 190.

With reference to FIG. 1B, the post-formation processing device 100 is used to receive the pre-cured composite stringer 190 after the pre-cured composite stringer 190 has been formed / molded. The post-formation processing device 100 is also used to support the pre-cured composite stringer 190 until the curing step. The post-formation processing device 100 effectively reduces the forming device 510 and the curing device 540 and increases their processing throughput. The post-formation processing device 100 is used in various steps performed on the pre-cured composite stringer 190, and in some examples, used to house the pre-cured composite stringer 190.

However, if the post-formation processing devices are specially and permanently molded to accommodate the shape of each particular composite stringer, then the number of such post-formation processing devices will be different from the number of different stringers. Will be the same. This approach is undesirable in terms of space and cost savings and can complicate the entire process by requiring a large number of additional tools. In addition, the post-formation processing device is specially and permanently molded, and design variations make it not always possible to stack and complicate storage. It should also be noted that the supply infrastructure is limited based on the complexity of the processing device after it is formed. Also, the 3-D shape increases the complexity of reciprocating the stringer. Ultimately, the 3-D shape can add weight and suppress manual operation for a variety of reasons, including maintenance.

A variation in the design of the composite stringer, more specifically, a different example of the pre-cured composite stringer 190 is shown in FIG. 1C-1E. In each example, the pre-cured composite stringer 190 comprises a flange portion 196 and a contact surface 197 is defined. The contact surface 197 is used to connect the composite stringer formed from the pre-cured composite stringer 190 to other components (eg, the composite skin of an aircraft). These other components define the shape of the contact surface 197. In some examples, the contact surface 197 is flat. Alternatively, the contact surface 197, and more generally the entire stringer, has an out-of-plane bend.

Each of the pre-cured composite stringers 190 also comprises a hat portion 191 which is interconnected and disposed between the flange portions 196. The hat portion 191 extends away from the contact surface 197 and defines the stringer cavity 192. The hat portion 191 is defined by the height (H) of the hat portion 191 and the height (H) of the hat portion 191 is defined as the maximum deviation from the contact surface 197. The hat portion 191 is also defined by the width (W) of the hat portion 191 and the width (W) of the hat portion 191 is defined as a gap between the flange portions 196.

With reference to FIG. 1C, in some examples, the hat portion 191 is formed by a straight wall. Alternatively, in some examples, the hat portion 191 is formed by a continuously curved wall, for example, as shown in FIG. 1E. FIG. 1D shows an example in which the hat portion 191 is formed by a combination of a straight wall and a curved wall. FIG. 1C-1E illustrates that the pre-cured composite stringer 190 shown in these figures requires different types of support from the post-formation processing device 100. Furthermore, FIG. 1C-1E shows that the pre-cured composite stringer 190 is not stackable. Therefore, if a permanently rigid support is used for these pre-cured composite stringers, these supports will also not stack. For the purpose of distinguishing pre-cured composite stringers, the example shown in FIG. 1E may be referred to as an additional pre-cured composite stringer 199. Processing different types of pre-cured composite stringers using the same post-formation processing device 100 is described below with reference to FIG.

The methods and devices described are used to support a variety of different pre-cured composite stringers, such as the pre-cured composite stringers shown in FIGS. 1A-1C. More specifically, the same post-formation processing device is configured to support pre-cured composite stringers with different cross-sectional profiles of their hat portions. In particular, the post-formation processing device comprises a channel and a support structure that at least partially extends within the channel. The support structure is configured to match and support each of the various molded hat portions of the pre-cured composite stringer while retaining the shape of these hat portions. In some examples, the support structure is made from a flexible material that matches any shape of the hat portion. Alternatively, the support structure is made from interfering material and remolded with each of the pre-cured composite stringers.

Within the scope of the examples of the present disclosure, the disclosed post-formation processing devices are used to support a variety of pre-cured composite stringers, while stringer trimming, inspection, bladder and noodle installation, etc. Various steps are performed on these stringers. Moreover, in some examples, the disclosed post-formation processing device is used to house a pre-cured composite stringer. Overall, the processing throughput of other devices, such as forming and curing devices, can be increased by adding the disclosed post-formation processing devices to the entire process flow. Overall, the disclosed post-formation processing devices use these post-formation processing devices to provide fast automation of stringer installation by merging the gaps between the forming and curing devices.

The disclosed method also incorporates alignment fittings to ensure proper alignment between stringers and bladder for dead end fittings. The bladder offset helps provide proper support and functionality during curing. For example, in some cases, the bladder terminates inside the edge of the part. Specific examples include door structures, window structures, and convergent structures (eg, aircraft structures with pointed ends).

It should be noted that the cavity is a tool used to form stringers and accommodates both stringers and bladder. If the bladder does not extend past the stringer, the bladder will interfere or leave an unacceptably large gap inside the tool. Since the bladder is aligned and locked to the stringer during the equipment phase, it is beneficial to index the bladder in the correct position to avoid reworking at a later stage.

In addition, some bladder receive one or more layers of material wrapped around these bladder prior to insertion into the corresponding stringer. In some examples, these assemblies include a glass ply, which is aligned with the edge of the stringer to add corrosion protection inside the stringer. In another example, this assembly contains carbon wrap to add strength to the stringer. In these later examples, the bladder wrap is aligned with the stringer.

Examples of Post-Formation Processing Devices FIG. 2A is a schematic cross-sectional view of a post-formation processing device 100 for supporting a pre-cured composite stringer 190, according to some examples. The post-formation processing device 100 includes a base 110, a support structure 120, and optionally a cover 130. In some examples, the post-formation processing device 100 does not have a cover 130, or at least does not include a cover 130 and is used in some steps.

The base 110 is made of a hard material such as carbon fiber, aluminum, a pultruded polyester / glass solution. The base 110 comprises a support surface 114 and, when the cover 130 is present, faces the cover 130. The support surface 114 is hermetically sealed with respect to the cover 130 and, in some examples, includes one or more hermetic features. During the operation of the post-formation processing device 100, the support surface 114 is used to support the flange portion 196 of the stringer 190, such as by compressing the flange portion 196 between the support surface 114 and the cover. In some examples, the support surface 114 is flat. Generally, the support surface 114 matches the shape of the flange portion 196 of the stringer 190.

The base 110 also comprises a channel 112 that extends partially through the base 110 and has a gap 113. The gap 113 separates the two parts of the support surface 114. As shown in FIG. 2A, the channel 112 has a channel width (CW) and a channel height (CH). The channel width (CW) is measured in the direction parallel to the support surface 114 (along the Y axis). The channel height (CH) is measured in the direction perpendicular to the support surface 114 (along the Z axis). In some examples, the channel width (CW) is constant along the length of the base 110 (X-axis (see, eg, FIG. 2F)). In some or other examples, the channel height (CH) is constant along the length (X-axis) of the base 110. In some examples, the channel width (CW) is constant along the channel height (Z-axis), for example as shown in FIG. 2A. This type of channel 112 can also be referred to as a straight channel. Alternatively, the channel width (CW) varies along the channel height (Z-axis), for example as shown in FIG. 2E. In this example, the channel width (CW) is largest at the gap 113. This type of channel 112, sometimes referred to as a tapered channel, allows the post-formation processing device 100 to be stacked.

The channel 112 is used to accommodate the hat portion 191 of the pre-cured composite stringer 190 when the pre-cured composite stringer 190 is supported using the post-formation processing device 100. Referring to FIG. 2B, the hat portion 191 projects into the channel 112, while the flange portion 196 rests on the support surface 114. It should be noted that the same post-formation processing device 100 is used to support different types of pre-cured composite stringers 190 that may have hat portions 191 of different shapes and sizes. Thus, the channel width (CW) is greater than the width of the hat portion 191 of the pre-cured composite stringer 190, or more specifically, all pre-cured processed on the post-formation processing device 100. It is larger than the width of the widest hat portion 191 among the composite stringers 190. For the purposes of the present disclosure, the width of the hat portion 191 is defined as the maximum width, for example, when the hat portion 191 has a tapered or curved cross section. Further, the channel height is greater than or more specifically the height of the hat portion 191 of the pre-cured composite stringer 190, or more specifically, it is processed on the post-formation processing device 100. Higher than the height of the highest hat portion 191 among all pre-cured composite stringers 190. In general, the cross-sectional profile of channel 112 is sufficient to accommodate any hat portion 191 of the stringer 190 that is processed using the post-formation processing device 100.

2A-2C shows a cross-sectional profile of the rectangular channel 112, but any cross-sectional profile that can accommodate the hat portion 191 of the pre-cured composite stringer 190, such as the tapered profile, semi-circular profile shown in FIG. 2E. However, it is within the scope of this disclosure. In some examples, the cross-sectional profile of the channel 112 corresponds to the cross-sectional profile of the hat portion 191 and, for example, both are tapered.

With reference to FIG. 2A, the support structure 120 extends at least partially along the length of the channel 112 within the channel 112. In some examples, the support structure 120 is provided with each hat portion 191 as the pre-cured composite stringer 190 is supported by the post-formation processing device 100 and processed using the post-formation processing device 100. Is configured to retain the cross-sectional shape of its hat portion 191. It should be noted that the same support structure 120 is used for hat portions 191 of different types and profiles. The support structure 120 can match these different types and profiles while providing sufficient support.

In some examples, the support structure 120 is formed from an elastic material configured to change shape when matching different types of hat portions 191. Some examples of suitable elastic materials include, but are not limited to, latex, silicones (eg peroxides or platinum hardened silicon), and other similar materials. Some considerations regarding material selection include weight, detergency, solvent resistance, stiffness, tear strength, elongation to breakage, and hardness.

In some examples, the support structure 120 is attached to the base 110 at the side wall of the channel 112 and is schematically shown, for example, in FIG. 1A. In these examples, the support surface 114 remains exposed and is available for connection with the flange portion 196 of the pre-cured composite stringer 190. In short, the support structure 120 is not connected when the flange portion 196 is located on the support surface 114, for example, when compressed between the support surface 114 and the cover 130. These examples are schematically shown in FIGS. 2A-2B.

In some examples, the support structure 120 comprises an interfering material or a plastically deformable material. For the purposes of the present disclosure, an interfering material is defined as a material that can change its shape in one condition and retain its shape in another. More specifically, the support structure 120 is formed or molded together with one of the pre-cured composite stringers 190 and then retains the shape of the stringers while supporting the stringers. For example, the shape of the support structure 120 is initially different from the shape of the pre-cured composite stringer 190. It should be noted that at this stage, the pre-cured composite stringer 190 has not yet been formed. Both the support structure 120 and the composite layup are carried into the forming device and various examples of these are described below. The shape of the support structure 120 is adjusted while the pre-cured composite stringer 190 is being formed. Therefore, the support structure 120 is formed or formed together with the pre-cured composite stringer 190.

This shape is held by the support structure 120 during various operations of the post-formation processing device 100 while supporting this particular stringer. In some examples, the shape is preserved while processing multiple stringers of the same type (eg, the same cross-sectional shape of the hat portion). When different types of stringers are supported, the shape of the support structure 120 changes, for example by forming or molding with other stringers. These examples are schematically shown in FIGS. 3A-3B.

Referring to FIG. 3A, in some examples, the support structure 120 comprises a support flange 124 that extends above the support surface 114 of the base 110 and outside the channel 112. Similar to a portion of the support structure 120 that extends into the channel 112 and supports the hat portion 191 of the stringer 190, the support flange 124 is specifically shaped to support the flange portion 196 of the stringer 190. In some examples, the shape of the support flange 124 is different from the shape of the support surface 114. Therefore, the same post-formation processing device 100 can be used to support stringers with flange portions of different shapes.

In some examples, the support structure 120 is removable from the base 110. For example, the support structure 120 is removed from the base 110 in order to change the shape of the support structure 120, for example, when the support structure 120 is made from an interfering material. In some examples, different types of support structures 120 are used with the same base 110.

The cover 130 is configured to be attached to the base 110 and is positioned between the cover 130 and the base 110 while the corresponding one of the pre-cured composite stringers 190 is supported by the post-formation processing device 100. Be done. More specifically, the flange portion 196 of the pre-cured composite stringer 190 is positioned and, in some examples, compressed between the cover 130 and the support surface 114, eg, as schematically shown in FIG. 3C. Will be done. The cover 130 is configured to be hermetically sealed to the base 110. In particular, the cover 130 includes a vacuum seal 132 that engages with the seal receiving portion 115.

In some examples, the base 110 comprises an opening 116 fluid-coupled to the channel 112 and is configured to control pressure inside the channel 112 and below the support structure 120. For example, when the hat portion 191 of the pre-cured composite stringer 190 is inserted into the channel 112 and engages with the support structure 120, or more specifically, the hat portion 191 channels the support structure 120 through the channel 112. The opening 116 is used to make the pressure under the support structure 120 the same as in the environment when reducing the volume under the support structure 120 by pushing deeper inward.

In some examples, the post-formation processing device 100 further comprises a flexible insert 140, for example as shown in FIG. 2D. The flexible insert 140 is positioned under the support structure 120 along with the channel 112 and is used to provide additional support to the hat portion 191. The flexible insert 140 is highly flexible and can match a larger variation of the hat portion 191 than, for example, when the support structure 120 is used without the flexible insert 140. The support structure 120 can be used. In some examples, the flexible insert 140 is made from elastomeric rubber (eg, MOSITES® rubber), latex, or the like.

Referring to FIG. 2F, in some examples, the post-formation processing device 100 comprises an opening bladder seal 180 and a dead end bladder seal 182. It should be noted that the bladder 520, further described below with reference to FIG. 5D-E, is, for example, a tube made of silicone (VITON®) or other similar material. In some examples, the material of the bladder 520 is reinforced or layered. During processing, the bladder 520 is released into the autoclave atmosphere during curing and into the ambient atmosphere in any compression / vacuum bag. Thus, in some examples, one end of the bladder 520 comprises a fitting with a vent. The opening bladder seal 180 shown in FIG. 2F connects to this fitting when the bladder 520 is inside the post-formation processing device 100, allowing the bladder 520 to be released. In some examples, the post-formation processing device 100 comprises an opening bladder seal at both ends.

Examples of Composite Stringer Manufacturing Methods FIG. 4 is a process flow chart corresponding to method 400 for manufacturing composite stringers 198 (see, eg, FIG. 1B), according to some examples. The composite stringer 198 should be distinguished from the pre-cured composite stringer 190, which is an intermediate structure used to form the composite stringer 198. Thus, in some examples, the pre-cured composite stringer 190 and composite stringer 198 have the same size and shape. Therefore, FIG. 1C-1E represents both the pre-cured composite stringer 190 and the composite stringer 198. In some examples, composite stringers 198 include fiber reinforced composites, which can also be called reinforced composites. This type of material comprises one or more heterogeneous polymer-based components and one or more non-polymer-based components (eg, carbon fibers). Method 400 is described in more detail below with reference to FIGS. 4 and 5AH.

Method 400 comprises forming a pre-cured composite stringer 190 using, for example, a composite layup 502 (block 410). This step is performed using the forming device 510 (FIGS. 5A-5B), which the forming device 510 and the post-forming processing device 100 used in a later step (shown in FIG. 5C-5F). Is different. As described above, the post-formation processing device 100 increases the throughput of the forming device 510 because various subsequent steps are performed using the post-formation processing device 100.

In some examples, the composite layup 502 comprises an uncured, pre-impregnated reinforced tape or fabric that may be called a prepreg. The tape or fabric comprises fibers such as graphite fibers embedded in a polymer, more specifically a matrix material such as epoxy or phenolic resin. In some examples, the tape or fabric is unidirectional or woven, depending on the degree of design and reinforcement desired for the resulting composite stringer 198.

During the forming step (block 410), the composite layup 502 is positioned on top of the forming device 510, for example as shown in FIG. 5A. In some examples, for example, when the support structure 120 is formed with a pre-cured composite stringer 190, the support structure 120 is positioned between the composite layup 502 and the forming device 510. These examples are further described below with reference to block 412. The forming device 510 includes a forming base 511 along with a forming cavity 512, defining the shape of the pre-cured composite stringer hat portion 191. Referring to FIG. 5B, the forming device 510 also comprises a forming die 513, which pushes a portion of the composite layup 502 into the forming cavity 512 and against the wall of the forming cavity 512.

Upon completion of this step, a composite layup 502 is formed on the pre-cured composite stringer 190. The pre-cured composite stringer 190 comprises a hat portion 191 that is disposed between the forming die 513 and the wall of the forming cavity 512. The pre-cured composite stringer 190 also comprises a flange portion 196, which extends outside the forming cavity 512 and coincides with, for example, the forming surface 514 of the forming base 511. In some examples, the forming die 513 comprises a specially configured bladder that pushes the flange portion 196. These bladder are pressurized prior to the formation of the hat portion 191 and come into contact with the flange portion 196, reaching different pressure levels in some examples and compound layup while the hat portion 191 is being formed. The 502 can slide on the forming surface 514.

In some examples, forming the pre-cured composite stringer 190 on the forming device comprises forming the support structure 120 of the post-formation processing device 100 (block 412). For example, the support structure 120 includes an interfering material, the various examples and features thereof are as described above. In some examples, the support structure 120 is molded in a separate process from the pre-cured composite stringer 190. Alternatively, the support structure 120 and the pre-cured composite stringer 190 are formed or molded together in the same overall process. For example, the process represented by block 412 is part of the process represented by block 410, as shown in FIG. In short, the support structure 120 is placed in the forming device 510 together with the composite layup 502. At this stage, the shape of the support structure 120 will be formed on the forming device 510 and defined by the forming device 510, unlike the shape of the pre-cured composite stringer 190. For example, support structure 120 was previously used to support another pre-cured composite stringer with a different shape. While the pre-cured composite stringer 190 is formed during the parallel steps represented by blocks 410 and 412, the support structure 120 is also formed or molded together. This support structure forming step (block 412) can also be referred to as a deformation step.

In some examples, method 400 also involves trimming the pre-cured composite stringer 190, eg, cutting a portion of the pre-cured composite stringer 190. For example, an ultrasonic knife is used for cutting.

Method 400 continues by transferring the pre-cured composite stringer 190 from the forming device 510 to the post-forming processing device 100 (block 420). For example, transferring the pre-cured composite stringer 190 from the forming device 510 to the post-forming processing device 100 is shown in FIG. 5B-5C. Various examples of the post-formation processing device 100 are as described above. In some examples, the pre-cured composite stringer 190 is transferred unsupported. Alternatively, the pre-cured composite stringer 190 is transferred with the support structure 120.

In some examples, the transfer step comprises controlling the pressure inside the channel 112 of the base 110. For example, by inserting the hat portion 191 of the pre-cured composite stringer 190 into the channel 112, displacement of air from the channel 112 can occur, for example, through the opening 116.

In some examples, the transfer step comprises stretching the support structure 120 of the processing device 100 after formation (block 422). In these examples, the support structure 120 is formed from an elastic material that matches the shape of the hat portion 191 of the pre-cured composite stringer 190 as the hat portion is inserted into the channel 112. More specifically, the elastic material is configured to deform when it coincides with each of the hat portions 191. As mentioned above, in some examples, the hat portion 191 has a different cross-sectional shape. For example, as shown in FIGS. 2A-2B, the stretch characteristics of the support structure 120 allow the pre-cured composite stringer 190 to be supported by hat portions 191 of different sizes.

In some examples, the transfer step comprises adjusting the shape 100 of the processing device after formation (block 424). 6A-6B show the base 110 of the post-formation processing device 100 having a swivel point defined by the first axis 601. Other components of the post-formation processing device 100, such as the support structure 120, are not shown for simplification. Due to the turning point, the base 110 has an in-plane bend, a straight, pre-cured composite stringer (within the configuration shown in FIG. 6A) and a pre-cured composite stringer with an in-plane bend (see FIG. 6B). It will be able to accommodate both (within the configuration shown). Although only one turning point is shown in FIGS. 6A-6B, those skilled in the art will appreciate that any number of turning points can exist. Further, in some examples, the post-formation processing device 100 has an out-of-plane bending function. It should be noted that some bending of the pre-cured composite stringer, especially local bending, can be accommodated on the side of the channel 112 within the base 110 without bending the base 110.

In some examples, method 400 comprises inspecting a pre-cured composite stringer 190 (block 430). The test is performed while the pre-cured composite stringer 190 is positioned on the post-formation processing device 100. For example, the inspection involves checking the surface of the pre-cured composite stringer 190 for wrinkles, air bubbles, foreign debris (FOD), loose fibers, wrinkles, and shape. It should be noted that as the inspection process is performed away from the forming device 510 and the curing device 540, other pre-cured composite stringers are processed on these devices, increasing the overall throughput of the process. ..

Method 400 includes placing the bladder 520 on a pre-cured composite stringer 190 (block 440), eg, as schematically shown in FIG. 5D. The bladder 520 is installed while the pre-cured composite stringer 190 is positioned on the post-formation processing device 100. In some examples, the bladder 520 is wrapped in a bladder wrap and then cured into the outer skin of the stringer when the bladder 520 is removed. The bladder 520 is used during the curing process to provide support inside the pre-cured composite stringer 190. In some examples, the bladder 520 is a solid object made of silicone, urethane, or a similar material containing any combination thereof. In some examples, the bladder 520 is molded to substantially correspond to the pre-cured composite stringer 190.

Method 400 places the noodle 530 at the interface between the bladder 520 and the pre-cured composite stringer 190 and in the plane of the support surface 114 of the base 110, eg, as schematically shown in FIG. 5E. Includes doing (block 450). This installation step is performed while the pre-cured composite stringer 190 is positioned on the post-formation processing device 100. Noodle 530 is also called an r-part filler.

In some examples, method 400 comprises compressing the pre-cured composite stringer 190 while the pre-cured composite stringer 190 is positioned on the post-formation processing device 100 (block 460). For example, the compression step comprises sealing the cover 130 of the post-formation processing device 100 with respect to the base 110 of the post-formation processing device 100, for example as schematically shown in FIG. 5F. In some examples, the compression step further comprises contacting at least the flange portion 196 of the pre-cured composite stringer 190 with the cover 130 of the processing device 100 after formation.

In some examples, method 400 involves staging and transporting a pre-cured composite stringer 190. These steps are performed while the pre-cured composite stringer 190 is positioned on the post-formation processing device 100. In addition, the post-formation processing device 100 is used to support the pre-cured composite stringer 190 while providing support for the pre-cured composite stringer 190.

Method 400 continues by transferring the pre-cured composite stringer 190 from the post-formation processing device 100 to the curing device 540 (block 490). For example, FIG. 5F-5H shows the transfer of the pre-cured composite stringer 190 from the post-formation processing device 100 to the curing device 540. In some examples, the pre-cured composite stringer 190 is transferred with the bladder 520 and / or the noodle 530, and the bladder 520 and / or the noodle 530 is transferred to the processing device 100 after the pre-cured composite stringer 190 is formed. While being positioned, it is placed on a pre-cured composite stringer 190.

Method 400 comprises forming a composite stringer 198 by curing a pre-cured composite stringer 190 on a curing device 540 (block 492), eg, as schematically shown in FIG. 5H-5I. For example, the pre-cured composite stringer 190 shown in FIG. 5H is exposed to heat and pressure to crosslink the resin within the pre-cured composite stringer 190. Unlike the pre-cured composite stringer 190, the composite stringer 198 shown in FIG. 5I does not require the level of support required for the pre-cured composite stringer 190. Therefore, the post-formation processing device 100 is not used in the composite stringer 198.

In some examples, the various steps of Method 400 are repeated with an additional pre-cured composite stringer 199 (determination block 494), one example of which is shown in FIG. 1E. In particular, the additional pre-cured composite stringer 199 has a different design than the pre-cured composite stringer 190 previously processed using the same post-formation processing device 100. Various different designs for pre-cured composite stringers are shown in FIG. 1C-1E. Other exemplary designs for pre-cured composite stringers are possible as well.

In particular, method 400 comprises forming an additional pre-cured composite stringer 199 on an additional forming device (block 410). Unlike the post-formation processing device 100, which can be universally used across a variety of different designs of pre-cured composite stringers, the forming device is a dedicated tool. In some examples, the support structure 120 is reformed or reformed during this forming step of an additional pre-cured composite stringer 199. More specifically, the support structure 120 has a different shape when supporting the additional pre-cured composite stringer 199 than when supporting the pre-cured composite stringer 190.

Method 400 continues by transferring this additional pre-cured composite stringer 199 from the forming device to the post-forming processing device 100 (block 420). As mentioned above, the additional pre-cured composite stringer 199 has a different design, more specifically, a different cross-sectional profile than the pre-cured composite stringer 190.

In some examples, method 400 installs an additional bladder on the additional pre-cured composite stringer 199 while the additional pre-cured composite stringer 199 is positioned on the post-formation processing device 100. Continue by doing. In addition, the noodles are placed on top of the additional pre-cured composite stringer 199 while the additional pre-cured composite stringer 199 is positioned on top of the post-formation processing device 100. However, these steps are optional.

Method 400 transfers an additional pre-cured composite stringer 199, along with additional bladder and additional noodles, from the post-formation processing device 100 to an additional curing device, as well as pre-curing using the additional curing device. Continue by forming additional composite stringers by curing the resulting composite stringers 190.

FIG. 7 is a process flow chart of method 700 supporting a pre-cured composite stringer 190 using the post-formation processing device 100, according to some of the examples of the present disclosure. Method 700 includes transferring the pre-cured composite stringer 190 to the post-formation processing device 100 (block 720), eg, as schematically shown in FIG. 5C. Various examples of pre-cured composite stringers 190 are described above. For example, the pre-cured composite stringer 190 includes a hat portion 191 which is supported when the pre-cured composite stringer 190 is transferred to the post-formation processing device 100. The post-formation processing device 100 includes a base 110 that includes a channel 112. The post-formation processing device 100 also comprises a support structure 120 that extends within the channel 112 at least partially along the length of the channel 112.

When the pre-cured composite stringer 190 is transferred to the post-formation processing device 100, the support structure 120 coincides with the hat portion 191 of the pre-cured composite stringer 190, eg, as schematically shown in FIG. 5C. do. More specifically, the support structure 120 retains the cross-sectional shape of the hat portion 191 of the pre-cured composite stringer 190, while the pre-cured composite stringer 190 is positioned within the post-formation processing device 100. .. In some examples, the support structure 120 is formed from a flexible material to provide this conformal support. In another example, the support structure 120 is made from an interfering material that is remolded with each of the new pre-cured composite stringers.

In some examples, the transfer step (block 720) involves stretching the support structure 120 of the post-formation processing device 100 (block 722), eg, as schematically shown in FIGS. 2A-2B. In these examples, the support structure 120 is formed from an elastic material that matches the shape of the hat portion 191 of the pre-cured composite stringer 190 as the hat portion is inserted into the channel 112. The stretch characteristics of the support structure 120 allow the composite stringer 190 to be supported by pre-cured composite stringers 190 with hat portions 191 of different sizes.

In some examples, the transfer step (block 720) involves adjusting the shape 100 of the processing device after formation (block 724). 6A-6B show the base 110 of the post-formation processing device 100 having a swivel point defined by the first axis 601. Other components of the post-formation processing device 100, such as the support structure 120, are not shown for simplification. Due to the turning point, the base 110 has an in-plane bend, a straight, pre-cured composite stringer (within the configuration shown in FIG. 6A) and a pre-cured composite stringer with an in-plane bend (see FIG. 6B). It will be able to accommodate both (within the configuration shown). Although only one turning point is shown in FIGS. 6A-6B, those skilled in the art will appreciate that any number of turning points can exist. Further, in some examples, the post-formation processing device 100 has an out-of-plane bending function. It should be noted that some bending of the pre-cured composite stringer, especially local bending, can be accommodated on the side of the channel 112 within the base 110 without bending the base 110.

In some examples, the transfer step (block 720) positions the cover 130 of the post-formation processing device 100 with respect to the base 110 of the post-formation processing device 100, eg, as schematically shown in FIG. 5F. (Block 726) is included. In some examples, the cover 130 is sealed with respect to the base 110. Further, in some examples, the step of positioning this cover (block 726) compresses at least the flange portion 196 of the pre-cured composite stringer 190.

In some examples, the transfer step (block 720) involves controlling the pressure inside channel 112 of the base 110 (block 728). For example, by inserting the hat portion 191 of the pre-cured composite stringer 190 into the channel 112, displacement of air from the channel 112 can occur, for example, through the opening 116.

In some examples, method 700 comprises accommodating a pre-cured composite stringer 190 (block 730). More specifically, the pre-cured composite stringer 190 is housed in the post-formation processing device 100 before the pre-cured composite stringer 190 is removed from the post-formation processing device 100 (block 740).

Method 700 continues by removing the pre-cured composite stringer 190 from the post-formation processing device 100 (block 740). For example, the pre-cured composite stringer 190 is transferred to the curing device 540, eg, as schematically shown in FIG. 5H. Alternatively, the pre-cured composite stringer 190 is transferred to another device, for example for inspection.

Method 700 continues, more specifically, by transferring an additional pre-cured composite stringer 199 to the post-formation processing device 100 (block 720), eg, as schematically shown in FIG. 5J. It repeats (determination block 794). The additional pre-cured composite stringer 199 provided an additional hat portion 193, thus the cross-sectional shape of the additional pre-cured composite stringer 199 additional hat portion 193 was pre-cured as shown in FIG. 5C. It is different from the cross-sectional shape of the hat portion 191 of the composite stringer 190. However, regardless of this difference in cross-sectional shape, the support structure 120 of the post-formation processing device 100 corresponds to the additional hat portion 193 of the additional pre-cured composite stringer 199. In addition, the support structure 120 retains the cross-sectional shape of the additional hat portion 193 of the additional pre-cured composite stringer 199.

Aircraft Examples In some examples, the methods and systems described above are used on aircraft, more generally by the aerospace industry. In particular, these methods and systems can be used during the manufacture of the aircraft and during the maintenance and maintenance of the aircraft.

Therefore, the above devices and methods are applicable to the aircraft manufacturing and maintenance method 900 shown in FIG. 8 and the aircraft 902 shown in FIG. In the pre-manufacturing phase, Method 900 includes aircraft 902 specifications and design 904 and material procurement 906. During the manufacturing phase, components and subassemblies of the aircraft 902 are manufactured 908 and system integration 910 is performed. The aircraft 902 is then put into service 914 after approval and delivery 912. During customer operation, Aircraft 902 is scheduled for regular maintenance and maintenance 916, including modifications, reconstructions and refurbishments.

In some examples, each of the processes of Method 900 may be performed or performed by a system integrator, a third party, and / or an operator, such as a customer. For the purposes of this specification, system integrators include, but are not limited to, any number of aircraft manufacturers and major system subcontractors, and third parties, but not limited to, any number of vendors, subcontractors. , And suppliers, and operators can be airlines, leasing companies, military organizations, service agencies, and so on.

As shown in FIG. 9, the aircraft 902 manufactured by the exemplary method 900 includes a plurality of systems 920 and an airframe 918 having an interior 922. Examples of system 920 include one or more of propulsion system 924, electrical system 926, hydraulic system 928, and environmental system 930. Any number of other systems may also be included. Although examples of the aerospace industry are shown here, the principles of the examples described herein apply to other industries such as the automotive industry.

The devices and methods embodied herein can be employed at any one or more stages of Method 900. For example, the components or subassemblies corresponding to Manufacture 908 are manufactured or manufactured in a manner similar to the components or subassemblies manufactured during the operation of aircraft 902. Also, embodiments of one or more devices, embodiments of methods, or combinations thereof, for example, by substantially streamlining the assembly of aircraft 902 or reducing the cost of aircraft 902. It is used at the stage of manufacturing 908 and system integration 910. Similarly, one or more of device embodiments, method embodiments, or combinations thereof are utilized during the operation of aircraft 902, eg, but not limited to, maintenance and maintenance 916.

Further Examples In addition, the description includes examples under the following provisions.

Clause 1. A post-formation processing device for supporting a pre-cured composite stringer, the composite stringer comprising a hat portion having a different cross-sectional area between the pre-cured composite stringers.
A base comprising a channel having a channel width and a channel height.
The channel width is larger than the width of the hat portion of the pre-cured composite stringer,
At the base, where the channel height is greater than the height of the hat portion of the pre-cured composite stringer,
A support structure that extends at least partially along the length of the channel within the channel and when the corresponding one of the pre-cured composite stringers is supported by the post-formation processing device, of the hat portion. A support structure configured to match each and retain each cross-sectional shape of the hat portion,
A cover configured to be attached to the base so that the corresponding one of the pre-cured composite stringers is positioned between the cover and the base while being supported by the post-formation processing device. A post-formation processing device comprising.

Clause 2. The post-formation processing device according to Clause 1, wherein the support structure is formed from an elastic material configured to deform when matching each of the hat portions.

Clause 3. The post-formation processing device according to Clause 2, wherein the support structure is attached to the base at the side wall of the channel.

Clause 4. The post-formation processing device according to any one of Articles 1 to 3, wherein the support structure comprises an interfering material or a plastically deformable material.

Clause 5. The post-formation processing device according to Clause 4, wherein the support structure is co-formed with the corresponding one of the pre-cured composite stringers.

Clause 6. The post-formation processing device of Clause 4, wherein the support structure comprises a support flange that extends over the support surface of the base and outside the channel.

Clause 7. The post-formation processing device according to Clause 4, wherein the support structure is removable from the base.

Clause 8. The post-formation processing device according to any one of clauses 1 to 7, wherein the base is fluid-coupled to the channel and comprises an opening configured to control the pressure inside the channel.

Clause 9. The post-formation processing device according to any one of clauses 1-8, further comprising a flexible insert that is positioned under the support structure along with the channel.

Clause 10. The post-formation processing device according to any one of clauses 1-9, wherein the cover is configured to be hermetically sealed to the base.

Clause 11. A method of manufacturing composite stringers,
Forming a pre-cured composite stringer with a hat portion on the forming device,
By transferring the pre-cured composite stringer from the forming device to the post-forming processing device, the post-forming processing device
The base with the channel and
A pre-cured composite stringer comprising a support structure that extends at least partially along the length of the channel within the channel, with a support structure that matches the hat portion and retains the cross-sectional shape of the hat portion. To transfer and
Placing the bladder on top of the pre-cured composite stringer while the pre-cured composite stringer is positioned on top of the post-formation processing device,
Placing noodles between the bladder and the pre-cured composite stringer and at the interface in the plane of the base support surface while the pre-cured composite stringer is positioned on the post-formation processing device.
Transferring the pre-cured composite stringer, along with bladder and noodles, from the post-formation processing device to the curing device,
A method comprising forming a composite stringer by curing a pre-cured composite stringer on a curing device.

Clause 12. 12. The method of clause 11, further comprising inspecting the pre-cured composite stringer while the pre-cured composite stringer is positioned on the post-formation processing device.

Clause 13. The method of clause 11 or 12, further comprising compressing the pre-cured composite stringer while the pre-cured composite stringer is positioned on the post-formation processing device.

Clause 14. 13. The method of clause 13, wherein compressing the pre-cured composite stringer comprises sealing the cover of the post-formation treatment device to the base of the post-formation treatment device.

Clause 15. 12. The method of clause 14, wherein compressing the pre-cured composite stringer further comprises contacting at least the flange portion of the pre-cured composite stringer with the cover of the treated device after formation.

Clause 16. The method according to any one of Articles 11 to 15, wherein forming a pre-cured composite stringer on top of the forming device forms a support structure for the treated device after formation.

Clause 17. The method of any one of Articles 11-16, wherein transferring the pre-cured composite stringer from the forming device to the post-forming processing device controls the pressure inside the channel at the base.

Clause 18. The method of any one of Articles 11-17, wherein transporting the pre-cured composite stringer from the forming device to the post-forming processing device comprises stretching the supporting structure of the post-forming processing device.

Clause 19. Forming additional pre-cured composite stringers on top of additional forming devices,
Transferring additional pre-cured composite stringers from the forming device to the post-forming processing device, where the additional pre-cured composite stringers have a different cross-sectional profile than the pre-cured composite stringers. With the transfer of additional pre-cured composite stringers,
Placing an additional bladder on top of the additional pre-cured composite stringer while the additional pre-cured composite stringer is positioned on top of the post-formation processing device,
Placing additional noodles on top of the additional pre-cured composite stringer, while the additional pre-cured composite stringer is positioned on top of the post-formation processing device,
Transferring additional pre-cured composite stringers, along with additional bladder and additional noodles, from the post-formation processing device to the additional curing device,
The method of any one of Articles 11-18, further comprising forming an additional composite stringer by curing the pre-cured composite stringer using an additional curing device.

Clause 20. 19. The method of clause 19, wherein the support structure has a different shape when supporting the additional pre-cured composite stringer than when supporting the pre-cured composite stringer.

Clause 21. Transferring a pre-cured composite stringer with a hat portion to a post-formation processing device, the post-formation processing device
The base with the channel and
A support structure that extends at least partially along the length of the channel, coincides with the hat portion of the pre-cured composite stringer, and retains the cross-sectional shape of the hat portion of the pre-cured composite stringer. Transferring pre-cured composite stringers,
Removing the pre-cured composite stringer from the post-formation processing device,
The support structure of the post-formation processing device includes the transfer of an additional pre-cured composite stringer with an additional hat portion to the post-formation processing device, the addition of additional pre-cured composite stringers. A method of retaining the cross-sectional shape of an additional hat portion of an additional pre-cured composite stringer that matches the hat portion of the pre-cured composite stringer and differs from the cross-sectional shape of the hat portion of the pre-cured composite stringer.

Clause 22. 21. The method of clause 21, wherein transporting the pre-cured composite stringer comprises positioning the cover of the post-formation processing device with respect to the base of the post-formation processing device.

Clause 23. 21 or 22. The method of clause 21 or 22, comprising transferring a pre-cured composite stringer to a post-formation processing device to control the pressure inside the channel at the base.

Clause 24. The method of any one of Articles 21-23, wherein transferring the pre-cured composite stringer to the post-formation treatment device comprises stretching the support structure of the post-formation treatment device.

Clause 25. 12. the method of.

Conclusion Although the above concept has been explained in some detail for the purpose of clarifying understanding, it will be clear that certain changes and amendments within the scope of the accompanying claims can be implemented. Note that there are a number of alternative modes of implementing processes, systems, and equipment. Therefore, the examples herein should be considered exemplary and not restrictive.

Claims (12)

A post-formation processing device (100) for supporting a pre-cured composite stringer (190), the composite stringer (190) having different cross-sectional areas among the pre-cured composite stringers (190). The processing device (100) comprises a hat portion (191) having the
A base (110) comprising a channel (112) having a channel width and a channel height.
The channel width is larger than the width of the hat portion (191) of the pre-cured composite stringer (190).
With the base (110), where the channel height is greater than the height of the hat portion (191) of the pre-cured composite stringer (190).
A support structure (120) that extends at least partially along the length of the channel (112) within the channel (112) and corresponds to one of the pre-cured composite stringers (190). A support structure configured to match each of the hat portions (191) and retain the cross-sectional shape of each of the hat portions (191) when one is supported by the post-formation processing device (100). Body (120) and
The cover (130), the cover (130) and the base, while the corresponding one of the pre-cured composite stringers (190) is supported by the post-formation processing device (100). A post-formation processing device (100) comprising a cover (130) configured to be attached to the base (110) so as to be positioned between (110). The post-formation processing device according to claim 1, wherein the support structure (120) is formed of an elastic material configured to deform when corresponding to each of the hat portions (191). 100). The post-formation processing device (100) of claim 2, wherein the support structure (120) is attached to the base (110) at a side wall of the channel (112). The post-formation processing device (100) according to any one of claims 1 to 3, wherein the support structure (120) includes an interfering material or a plastically deformable material. Any of claims 1 to 4, wherein the base (110) is fluidly coupled to the channel (112) and comprises an opening (116) configured to control pressure inside the channel (112). The post-formation processing device (100) according to claim 1. The post-formation processing device (100) according to any one of claims 1 to 5, further comprising a flexible insert (140) positioned under the support structure (120) along with the channel (112). .. The post-formation processing device (100) according to any one of claims 1 to 6, wherein the cover (130) is configured to be hermetically sealed to the base (110). Transferring a pre-cured composite stringer (190) with a hat portion (191) to a post-formation processing device (100) (720), wherein the post-formation processing device (100)
A base (110) with a channel (112) and
A support structure (120) extending in the channel (112) at least partially along the length of the channel (112), the hat portion (191) of the pre-cured composite stringer (190). ) To transfer the pre-cured composite stringer (190), comprising a support structure (120) that retains the cross-sectional shape of the hat portion (191) of the pre-cured composite stringer (190). To do (720) and
Removing the pre-cured composite stringer (190) from the post-formation processing device (100) (740) and
Including transferring (720) an additional pre-cured composite stringer (199) with an additional hat portion (193) to the post-formation processing device (100).
The support structure (120) of the post-formation processing device (100) coincided with the additional hat portion (193) of the additional pre-cured composite stringer (199) and was pre-cured. A method of retaining a cross-sectional shape of the additional hat portion (193) of the additional pre-cured composite stringer (199) that is different from the cross-sectional shape of the hat portion (191) of the composite stringer (190). 700). Transferring the pre-cured composite stringer (190) (720) covers the post-formation processing device (100) with respect to the base (110) of the post-formation processing device (100). The method (700) of claim 8, comprising positioning (130) (726). Transferring the pre-cured composite stringer (190) to the post-formation processing device (100) (720) comprises controlling the pressure inside the channel (112) of the base (110). , The method according to claim 8 or 9 (700). Transferring the pre-cured composite stringer (190) to the post-formation processing device (100) (720) stretches the support structure (120) of the post-formation processing device (100). The method (700) according to any one of claims 8 to 10, including (722). The pre-cured composite stringer (190) before the post-formation processing device (100) removes the pre-cured composite stringer (190) from the post-formation processing device (100) (740). ) Is stored (730), according to any one of claims 8 to 11 (700).

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